CN102017490B - A resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system - Google Patents

A resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system Download PDF

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Publication number
CN102017490B
CN102017490B CN200880009236.4A CN200880009236A CN102017490B CN 102017490 B CN102017490 B CN 102017490B CN 200880009236 A CN200880009236 A CN 200880009236A CN 102017490 B CN102017490 B CN 102017490B
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information
dvrb
lvrb
prb
rbg
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CN102017490A (en
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李大远
尹宁佑
金沂濬
尹硕铉
安俊基
徐东延
金银善
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LG Electronics Inc
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LG Electronics Inc
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Priority claimed from KR1020070089202A external-priority patent/KR20080085654A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0041—Frequency-non-contiguous
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Abstract

A resource allocation method and a method for transmitting resource allocation information in a mobile communication system are disclosed. That is, a LVRB (PRB) and a DVRB which are the units of a scheduling resource are defined and a resource allocation method and a method for transmitting resource allocation information using the same are disclosed. In the LVRB, a part -bitmap scheduling method using a LVRB set is suggested and a method for constructing resource allocation information using the same is suggested. In the DVRB, a method for defining the DVRB using PRBs in a subframe is suggested and a method for constructing resource allocation information using the same when scheduling is performed using the DVRB constructed by the defined method is suggested. In order to prevent interference and collision from occurring due to the complete matching of the DVRBs in respective cells, a method using different DVRBs in the respective cells is suggested.

Description

The method of resources in mobile communication system distribution and transmission/reception resource allocation information
Technical field
The present invention relates to mobile communication system, in particular to the resource allocation methods in a kind of mobile communication system and the method for transmission/reception resource allocation information.
Background technology
In mobile communication system, a kind of dispatching method for transfer of data, namely resource allocation methods is divided into frequency diversity scheduling (FDS) method of the receptivity gain for obtaining frequency of utilization diversity, and for obtaining frequency selective scheduling (FSS) method of the receptivity gain that frequency of utilization selectivity is dispatched.
In FDS method, transmitter is by being distributed widely in the subcarrier transmission of data packets in system frequency domain, and the symbol therefore in packet is subject to the impact of the change of wireless channel decline.Thus, prevent whole packet to be subject to the impact of harmful decline, therefore improve receptivity.
By contrast, in FSS method, in system frequency domain, carry out transmission of data packets by one or more continuous frequency domain being in useful fading condition, therefore improve receptivity.
In fact, in cellular OFDM radio packet communication system, multiple subscriber equipment is present in a community, and the radio channel state of these subscriber equipmenies has different qualities.Thus, even if in subframe, any one subscriber equipment is needed perform the transfer of data using FDS method, other subscriber equipment is needed perform the transfer of data using FSS method.Thus, preferably multiplexing FDS transmission method and FSS transmission method effectively in subframe.
Summary of the invention
Therefore, the present invention be directed to the resource allocation methods in a kind of mobile communication system and a kind of method for transmission/reception resource allocation information, it substantially avoid because of the restriction of correlation technique and shortcoming and the one or more problems caused.
What propose to deal with problems an object of the present invention is to provide a kind of efficient resource distribution method.
The another object of the present invention proposed to deal with problems is to provide a kind of method for carrying out transfer resource assignment information according to efficient resource distribution method.
By providing a kind of method for receiving resource allocation information in mobile communication system to reach object of the present invention, the method comprises: the first information and the second information that receive the set of indexed resource block group, and this second information is the bitmap indicating whether to be distributed by control channel the Resource Block be included in the set of Resource Block group; Distributed Resource Block is identified from the first information and the second information; Data are received with using the Resource Block distributed.
The first information can indicate one in the set of one or more Resource Block group.
The set of Resource Block group can comprise one or more Resource Block group.
According to the quantity of Resource Block included in subframe, Resource Block group can comprise one or more continuous resource block.
The quantity of Resource Block group set can corresponding to the quantity of the Resource Block be included in Resource Block group.
The quantity being included in the Resource Block in the set of Resource Block group can corresponding to the quantity of Resource Block group.
In another aspect of the present invention, a kind of method for transfer resource assignment information in mobile communication system that provided herein is, the method comprises: build comprise indexed resource distribute type the first information and as the control channel indicating whether second information of distributing the bitmap at least partially of the Resource Block be included in subframe according to resource allocation type; Transmitting control channel gives the subscriber equipment of scheduling; The data of control channel are associated with to the subscriber equipment of scheduling with transmission.
Resource allocation type can indicate at least one in group scheduling type and Partial Bitmap scheduling type.
When resource allocation type is Partial Bitmap scheduling type, bitmap can indicate the Resource Block being assigned to the subscriber equipment of scheduling among one or more Resource Block of comprising in the set of Resource Block group.
The set of Resource Block group can comprise one or more Resource Block group.
Resource Block group can comprise one or more continuous resource block.
Control channel can comprise three information of one of instruction among the set of one or more Resource Block group further.
When resource allocation type is group scheduling type, bitmap can indicate the Resource Block group of the subscriber equipment being assigned to scheduling.
In another aspect of the present invention, there is provided herein a kind of method for receiving resource allocation information in mobile communication system, the method comprises: receiving package is containing the information of the virtual resource blocks of the part of each of the one or more Resource Block in subframe; The Resource Block of distribution is identified from the information of virtual resource blocks; With use the Resource Block that distributes according to the information of virtual resource blocks receive data at least partially.
The information of virtual resource blocks can comprise the information of one or more Resource Block and indicate by the one or more information among one or more virtual resource blocks that one or more Resource Block is formed.
The quantity information that the information of virtual resource blocks can comprise one or more Resource Block and the quantity information of one or more virtual resource blocks be made up of one or more Resource Block, and indicate the one or more information in one or more virtual resource blocks.
Beneficial effect
By applying the transmission/reception methods of wireless resource allocation methods disclosed in this specification and structure and resource allocation information, FSS method and FDS method effectively can be combined with operation dispatching.
By applying the transmission method of wireless resource allocation methods disclosed in this specification and structure and resource allocation information, the amount of bits for transfer resource assignment information can be reduced.
In addition, by using DVRB construction method disclosed in this specification, transmission data can be made to the interference randomization between the community of subscriber equipment, thus optimization system efficiency.
Accompanying drawing explanation
Accompanying drawing included by the present invention is used for providing a further understanding of the present invention, and they are bonded to this and constitute the part of this specification, those figures show embodiments of the invention, and is used from specification one and explains principle of the present invention.
In the accompanying drawings:
Fig. 1 is the view representing scheduling resource module unit;
Fig. 2 is the view of the example representing the group scheduling method using local virtual Resource Block (LVRB);
Fig. 3 is the view of the example representing the Partial Bitmap dispatching method using LVRB according to an embodiment of the invention;
Fig. 4 is the view of the example representing the Partial Bitmap schedule information construction method using LVRB according to an embodiment of the invention;
Fig. 5 represents according to an embodiment of the invention for building the view of the example of the method for distributed virtual resource block (DVRB);
Fig. 6 represents according to an embodiment of the invention about the view of the example of the schedule information construction method of the scheduling of use DVRB;
Fig. 7 represents according to an embodiment of the invention about the view of the example of the schedule information construction method of the scheduling of use DVRB;
Fig. 8 represents in accordance with another embodiment of the present invention for building the view of the example of the method for DVRB;
Fig. 9 represents in accordance with another embodiment of the present invention about the view of the example of the schedule information construction method of the scheduling of use DVRB;
Figure 10 represents according to an embodiment of the invention for building the view of the example of the method for the different DVRB about community;
Figure 11 represents to be used to according to an embodiment of the invention transmit the view about the example of Physical Resource Block (PRB) system of selection of the different DVRB of community;
Figure 12 represents according to an embodiment of the invention for the transmission of use DVRB multiplexing in subframe and the transmission of use LVRB, and transmits the method for multiplexed signals.
Embodiment
Be described in detail referring now to the preferred embodiment of the present invention, its example has represented in the accompanying drawings.In any possible place, in institute's drawings attached, the identical reference marker of use is represented same or analogous parts.
Fig. 1 is the view representing scheduling resource module unit.
In mobile communication system, transmit uplink/downlink data packet in units of subframe, and the predetermined period of time definition subframe by comprising multiple OFDM symbol.In this manual, following term is defined in order to the convenience of technology description.
Resource particle (resource element, RE) is minimum frequency-time unit, and modulation symbol or the control channel of data are mapped in wherein.If carry out signal transmission by M subcarrier in an OFDM symbol and the N number of OFDM symbol in a subframe, M × N number of RE in this subframe, can be had.
Physical Resource Block (PRB) is the frequency-time resource unit for transmitting data.In general, a PRB is made up of the RE continuously in frequency-time domain, and defines multiple PRB in a subframe.
Virtual resource blocks (VRB) is the virtual resource unit for transmitting data.In general, the quantity of the RE comprised at a VRB equals the quantity of the RE that a PRB comprises.In actual data transfer, VRB can be mapped to PRB, or VRB can be mapped to a part of multiple PRB.
Local virtual Resource Block (LVRB) is the one of VRB.LVRB is mapped to PRB, and is mapped to multiple PRB, and wherein different LVRB can not be mapped to same PRB.LVRB can be construed as PRB.Here, the PRB that LVRB is mapped to can be called as the PRB for LVRB.
Distributed virtual resource block (DVRB) is the one of VRB.A DVRB is mapped to the some RE in multiple PRB, and different DVRB can not be mapped to identical RE.Here, the PRB for DVRB can be called as the PRB of DVRB structure.
Base station performs the scheduling of the downlink transmission be used for special user equipment by the one or more VRB in subframe, or performs the scheduling of the uplink data transmission from special user equipment to base station.Now, when communicating downlink data are to special user equipment, base station should transmit the information of data by which down link VRB to notification of user equipment instruction, and in order to allow special user equipment transfer uplink data, base station transmits the information of data by which up link VRB to notification of user equipment.
In the system of reality, use LVRB transfer of data and use DVRB transfer of data can in a subframe together with carry out.Now, in order to prevent using the transfer of data of LVRB to have conflict with the transfer of data of use DVRB in identical RE, preferably using the transfer of data of LVRB and using the transfer of data of DVRB to use the different PRB of subframe.
In other words, as mentioned above, PRB in the burst can be divided into the PRB for LVRB and the PRB for DVRB.Using the transfer of data of LVRB with using the transfer of data of DVRB to carry out together with in a subframe, can notify that the VRB of the transmission/reception being used for upper wired link/down link data is LVRB or DVRB to special user equipment.
Below, first by a kind of a kind of method using the data transmission method of LVRB and transmitting scheduling information of description.
If there is N in subframe lVRBindividual LVRB, base station according to using the data transmission method of LVRB, by using the N about at least one subscriber equipment lVRBindividual LVRB performs uplink/downlink scheduling.
Then, N lVRBbit map information is transferred to subscriber equipment, thus can by the information of which LVRB transfer uplink data by the information of which LVRB communicating downlink data or instruction to notification of user equipment instruction.That is, at N lVRBeach bit in bit map information represents about N lVRBthe data transmission information of each of individual LVRB.
For example, at N lVRBin bit map information, for for the LVRB to/from user device transmissions/receiving uplink/down link data, bit for this LVRB is set as 1, and for the LVRB be not used to to/from user device transmissions/receiving uplink/down link data, the bit for this LVRB is set as 0.Receive the N built by the method lVRBthe subscriber equipment of bit map information can be used in N lVRBthe LVRB being set as 1 in bit map information comes receiving downlink data or transfer uplink data.
Fig. 2 is the view of the example representing the group scheduling method using LVRB.
When the quantity being present in the LVRB in subframe is larger, base station uses too many down-chain resource to come to notification of user equipment N lVRBbit map information.Now, N lVRBindividual LVRB is divided into N gROUPindividual LVRB group, thus in units of LVRB group transmitting/receiving data.Then can reduce the quantity of the down-chain resource used when bitmap information transmission.
That is, in the transfer of data in units of LVRB group, base station is to notification of user equipment N gROUPthe N of individual LVRB group gROUPbit map information, instead of the N of notice LVRB lVRBbit map information (N gROUO< N lVRB).
In addition, if use LVRB to carry out transmitting/receiving data by FSS method, its advantage is in FSS method, uses the continuous subcarrier transmission data in frequency domain.Thus each of LVRB group is made up of the continuous P RB in frequency domain.The method is called as group scheduling method in the present invention.
In fig. 2, subframe is made up of 48 PRB, and each PRB is mapped to a LVRB.Now, three LVRB are combined to build a LVRB group, then there are 16 LVRB groups in each subframe.Thus, base station by 16 bit map information to special user equipment notification transmission down link data to the region of special user equipment, or specific user can the region of transfer uplink data.
But, if transmit data in units of LVRB group, even if the transmission of low volume data also will use N gROUPindividual LVRB, thus the waste causing frequency-time resource.If continuous print N in a frequency domain gROUPindividual LVRB becomes master data transmission unit, be then difficult to use FDS method to carry out performing data transmission effectively.
Thus, in the present embodiment, when transmitting data instead of transmit data in units of LVRB in units of LVRB group, which LVRB the necessary resource of data is transmitted to notification of user equipment by order to reduce, propose a kind of for informing the user whether by LVRB, by only about the method for the LVRB unit message bit pattern transmission data of a part of all LVRB in subframe.
Be assigned with the LVRB that the subscriber equipment for the LVRB of transfer of data/reception gathers by the LVRB belonged to about subframe and carry out transmitting/receiving data.The method is called as Partial Bitmap dispatching method in the present invention.
Fig. 3 is the view of the example representing the Partial Bitmap dispatching method using LVRB according to an embodiment of the invention.
In the present embodiment, when there is N in subframe lVRBduring individual LVRB, a part of all LVRB in subframe is defined as a LVRB set.In other words, pre-defined N lVRB_partindividual LVRB gathers (N lVRB_part< N lVRB).
Here, LVRB set is built by multiple method.Illustrate as an example in the upside of Fig. 3, construction method can be gathered and a kind of group construction method for set of applications dispatching method defines a LVRB group explicitly or LVRB gathers with a kind of.If the LVRB group construction method considered for set of applications dispatching method is gathered to define LVRB, can use group scheduling method compatible each other and Partial Bitmap dispatching method.Thus make to dispatch flexibly to become possibility.Below, two kinds of considering LVRB group construction method will be described be used for building the method for LVRB set as embodiment.
In first method, as the Partial Bitmap dispatching method 1 of Fig. 3, which defining LVRB set to comprise multiple LVRB group for group scheduling method, specifically, is the discontinuous LVRB group in frequency domain.According to the method, the multiple LVRB in LVRB group can be assigned to subscriber equipment.Thus all LVRB in LVRB group can be dispatched by the Partial Bitmap for a small amount of subscriber equipment and use.
In second method, LVRB set is made up of the LVRB at predetermined PRB interval separated from one another in a frequency domain.As the Partial Bitmap dispatching method 2 in Fig. 3, LVRB set can be built to comprise the LVRB belonging to each LVRB group.The advantage of the method is, when Partial Bitmap dispatching method is used to the transfer of data using FDS method, can come to/from user device transmissions/reception data by means of only LVRB separated from one another in a frequency domain.
In Partial Bitmap dispatching method, build LVRB set by above-mentioned two kinds of methods, these two kinds of methods are only exemplary.LVRB set is built by multiple method.
Fig. 4 is the view of the example representing the Partial Bitmap schedule information construction method using LVRB according to an embodiment of the invention.
Schedule information in Fig. 4 builds the structure that example represents the schedule information of subscriber equipment, and specifically, the schedule information of the subscriber equipment that expression can be transferred to use LVRB and be scheduled builds.
In the present embodiment, as mentioned above, suppose when there is N in subframe lVRBduring individual LVRB, a part of all LVRB in subframe is defined as LVRB set.
In the upside of Fig. 4, show when defining LVRB set for schedule information construction method during operation dispatching.As shown in the upside of Fig. 4, the LVRB aggregate information 40 that base station can use instruction bitmap to gather corresponding to which LVRB and indicate whether the N being transmitted data by the LVRB during LVRB gathers lVRB_partbit map information 41 to be received by which LVRB to notification of user equipment equipment for indicating user or transmits the information of data.
Suppose that the subscriber equipment of receiving scheduling information is learnt by broadcast message or schedule information and be assigned with LVRB.Thus the schedule information shown in the upside of Fig. 4 is received, then LVRB aggregate information 40 can be used to detect available LVRB and to be included in which set.Then, N lVRB_partbit Figure 41 is received, then which LVRB that can detect in the set detected by LVRB aggregate information 40 is available.
In the downside of Fig. 4, as mentioned above, show when LVRB group and LVRB gather associated with each other, thus schedule information construction method when compatibly can use group scheduling method and Partial Bitmap dispatching method.
As shown in the downside of Fig. 4, base station is the group/set indication information 42 for the message bit pattern of LVRB group or the message bit pattern for LVRB set by instruction message bit pattern, instruction when message bit pattern is the message bit pattern for LVRB set, bitmap corresponding to the LVRB aggregate information 43 and indicating whether of which LVRB can transmit for LVRB group data or whether can transmit the N of data of the LVRB in gathering for LVRB bitmapbit map information 44, to be received by which LVRB to notification of user equipment equipment for indicating user or transmits the information of data.
Suppose that the subscriber equipment of receiving scheduling information is learnt by broadcast message or schedule information and be assigned with LVRB.Subscriber equipment receives schedule information as shown in the downside of Fig. 4, being for the message bit pattern of LVRB group or the message bit pattern for the LVRB in gathering by the message bit pattern after group/set indication information detection.
If group/set indication information 42 indicates set, available LVRB can be detected by LVRB aggregate information 43 and be included in which set.Subsequently, N bitmapbit map information 44 is received, then it is available for can detecting which LVRB concentrated detected by LVRB aggregate information 43.Same, if group/set indication information 42 instruction group, can N be passed through bitmapwhich LVRB is bit map information 44 detect is available.
As shown in the downside of Fig. 4, as can another embodiment of the situation of the compatible group scheduling method that uses and Partial Bitmap dispatching method each other, group/set indication information 42 is not treated as independent bit information and transmits, and can be used as the one-component of the LVRB aggregate information 40 described with reference to the embodiment shown in the upside of figure 4 and be transmitted.Such as, if there are three LVRB set, 00 instruction message bit pattern is the message bit pattern for LVRB group, and 01,10 and 11 are set to instruction LVRB aggregate information, then its instruction message bit pattern is the message bit pattern for LVRB set.That is, 01,10 and 11 can be set to indicate LVRB set 1, LVRB set 2 and LVRB set 3 respectively.
As mentioned above, if LVRB group and LVRB gather associated with each other, then can free distribute data.Specifically, now, preferably N is met bitmap=N lVRB_part=N group.If meet N bitmap=N lVRB_part=N group, then the message bit pattern with predetermined or fixed size can be used.
Among these data transmission methods, in FSS method, because use the continuous subcarrier in frequency domain to transmit data, LVRB is used to transmit data more effective.If use the present embodiment, schedule information amount can reduce, and carrys out operation dispatching by the combination of FSS method and FDS method.Thus, more effectively can use transfer resource.
So far, the use data transmission method of LVRB and the method for transmitting scheduling information has been described.
Next will the data transmission method using DVRB and the method being used for transmitting scheduling information be described.
Group scheduling method or Partial Bitmap dispatching method cannot perform by a small amount of VRB the transfer of data using FDS method effectively.Such as, when passing through VRB transmission of data packets when applying portion bitmap dispatching method, transmission of data packets cannot be carried out by means of only single LVRB.Thus, carry out transmission of data packets by the continuous subcarrier in frequency domain, then cannot obtain frequency diversity gain.Therefore, in the present embodiment, suggested two kinds of methods for using FDS method to carry out performing data transmission effectively.
Fig. 5 represents according to an embodiment of the invention for building the view of the example of the method for DVRB.
In the present embodiment, N is included in dVRBthe RE for DVRB in individual PRB is combined to build N dVRBindividual DVRB.In the method, build a DVRB and belong to N to be included in dVRBthe RE of the specific quantity in each PRB of individual PRB.Fig. 5 represents that combination is included in four for the RE in the PRB of DVRB to build the example of four DVRB.That is, in Figure 5, a DVRB is built to comprise five RE at each PRB belonging to four PRB for DVRB.
Now, when by one or more DVRB transmission of data packets, frequency diversity gain can be obtained.Base station may be combined with the PRB of predetermined quantity, and builds the DVRB passed through to/from specific user's transmitting/receiving data being used for FDS transmission/reception methods.DVRB can be used to carry out the PRB being used for DVRB of transfer of data/reception by being used to notification of user equipment, how in for the PRB of DVRB, to build DVRB, and by which DVRB transmitting/receiving data.
Fig. 6 represents according to an embodiment of the invention about the view of the example of the schedule information construction method of the scheduling of use DVRB.
As described in Figure 5, description is combined N when adopting dVRBindividual for the RE in the PRB of DVRB, to build N dVRBfrom the schedule information of base-station transmission during the method for individual DVRB.In this case, in the present invention, when base station by the DVRB in any subframe to/from any user device transmissions/reception data time, suggested a kind of method to the following information of notification of user equipment.That is, Fig. 6 illustrates the schedule information of subscriber equipment.
First, be used for the PRB information of DVRB 60 to notification of user equipment, this DVRB 60 comprises the RE for building DVRB, by this DVRB to/from user device transmissions/reception data.For example, the PRB information for DVRB 60 can be changed into the index information of PRB or the message bit pattern for identifying PRB.
How base station builds DVRB by the PRB information indirect notifying user equipment for DVRB 60, and this DVRB 60 comprises the RE for building DVRB.For example, if base station to notification of user equipment three for the PRB to/from user device transmissions/reception data, subscriber equipment estimates that RE in each PRB is divided into three groups, and in these three PRB, define three DVRB that RE group is mapped to.
Specifically, suppose when being notified of the index of PRB, N maxindividual PRB can be used for DVRB structure as maximum.Now, if employ N used(be less than N max) index of individual PRB, the actual PRB used repeatedly is placed on except instruction N usedresidue PRB index bit place outside the bit of the index of individual PRB.If use remaining bits repeatedly to notify the index of the PRB of actual use, just how many PRB can be employed to notification of user equipment without the need to independent information.
In other words, although base station does not employ the information of how many PRB to notification of user equipment instruction, subscriber equipment still can estimated service life how many PRB.For example, if the index of the PRB do not duplicated, can estimated service life N maxindividual PRB.In the event of the index of the PRB repeated, detect whether be repeated N repeatthe index of individual PRB, then pass through N used=N max-N repeatestimate actually to employ N usedindividual PRB.
In more detail, the index of the actual PRB used is placed on for the N in the beginning of the PRB information of DVRB60 or ending by common usedindividual PRB index bit.If the index of the actual PRB used is by common transport to the beginning of PRB information 60 or ending, the index of the index of the PRB of actual use and the PRB of repetition easily differentiated by receiver, thus can more effectively transmission/reception schedule information.
In addition, when notifying message bit pattern or the index of the PRB be used for being used to the DVRB that DVRB transmits, in order to reduce necessary amount of bits, can notify to gather about some PRB and the message bit pattern of the PRB of structure or index, instead of notice is present in bitmap or the index of all PRB in band system band.
In other words, if be notified of the index of PRB, can notify to distribute to the index of the PRB of the DVRB for belonging to specific collection among the PRB that uses in DVRB structure or group, or the index of the PRB of DVRB for using in DVRB structure, instead of notice distributes to the index of all PRB be included in subframe.
Fig. 7 represents according to an embodiment of the invention about the view of the example of the schedule information construction method of the scheduling of use DVRB.
Specifically, when being notified of index (or sequentially can indicate the information of any form of PRB index) of the PRB building DVRB, by pointing out the sequence of the PRB index in the dispatching command being transferred to subscriber equipment is actually allocated to subscriber equipment to which part of notification of user equipment PRB.
For example, as shown in Figure 7, at N dwhen=2, PRB is divided into two groups about the time, and these two groups are assigned to different DVRB.Can determine the index instruction of the PRB group transmitted by dispatching command about the time comparatively before the part of (or comparatively after), and the instruction of the index of the 2nd PRB group about the time comparatively after the part of (or comparatively before) this is regular.
Same, even if when PRB is divided into two groups about frequency, the predetermined sequence of a part of PRB can be mapped to the PRB index sequence of dispatching command.It is applicable to N dbe greater than the situation of 2.In this case, specifically, when limit only have a DVRB to distribute to a subscriber equipment, the information for dispatching the actual physics time-frequency resources to user equipment allocation DVRB can be built by means of only the index (or sequentially can indicate the information of any form of the index of PRB) of PRB building DVRB.
Among the DVRB by estimating for the PRB information of DVRB 60, indicate the DVRB information 61 by which DVRB to/from subscriber equipment transmitting/receiving data practically notified together with the PRB information for DVRB 60.DVRB information can be built as the form of Direct Recognition DVRB.Such as, DVRB information becomes the index information of the DVRB passed through to/from user device transmissions/reception data.
Can build DVRB information with identify a DVRB information and instruction by how many DVRB to/to the information of user device transmissions/reception data.For notifying a DVRB information, suppose according to pre-defined rule allocation index to DVRB.The quantity for the RE of transfer of data/reception can be used to replace the information of the quantity of the DVRB passed through about transmitting/receiving data.
For example, suppose to carry out operation dispatching according to DVRB construction method as shown in Figure 5.That is, suppose to use four PRB altogether to build four DVRB, and by have DVRB index be 4 DVRB perform transfer of data/reception to/from subscriber equipment.
In this case, PRB index information for identifying above-mentioned PRB and message bit pattern is become for the PRB information of DVRB 60.If index information is transmitted, then transmission distribute in Fig. 5 first, second, the index information of the 5th and the 7th PRB.Now, as mentioned above, suppose to use N maxwhen=6 PRB are as maximum, the remaining bits that two can be used to remain PRB indexes come repetition and transmission first, second, any PRB of the 5th and the 7th PRB or the index of specific PRB.If message bit pattern is transmitted, first, second, the bitmap bit of the 5th and the 7th PRB can be set to, such as 1, and be transmitted, thus the transmission/reception of designation data is performed.
When the mode such by directly instruction DVRB builds DVRB information 61, the information corresponding to DVRB index information 4 is transmitted.When by to/from user device transmissions/reception data a DVRB information among the DVRB that passes through and for inform the user the information carrying out transmitting/receiving data by how many DVRB build DVRB information 61, be transmitted corresponding to the information of a DVRB and DVRB index information 4.
Base station dispatcher freely selects PRB in each subframe, and uses aforesaid way to build DVRB, thus freely multiplexing FDS transmission method and FSS transmission method.
Fig. 8 is in accordance with another embodiment of the present invention for building the view of the example of the method for DVRB.
In the present embodiment, as shown in Figure 8, determine the structure of the PRB of DVRB transmission according to the quantity of the PRB of the DVRB of the transmission/reception for being used as DVRB method practically and use the DVRB of PRB, and according to predetermined rule by digital distribution to the DVRB determined.
For example, in the upside of Fig. 8, if be 2 for the quantity of the PRB of the DVRB that is used as DVRB transmission/reception, the PRB for DVRB transmission is first and the 5th PRB, RE in each PRB is divided into two groups, and sequentially allocation index 1 and 2 gives this two groups.The RE group being assigned with same index in each PRB is combined to build DVRB.
Same, in the downside of Fig. 8, if be 4 for the quantity of the PRB of the DVRB that is used as DVRB transmission/reception, PRB for DVRB transmission is the first, the 3rd, the 5th and the 7th PRB, RE in each PRB is divided into four groups, and sequentially allocation index 1,2,3 and 4 gives this four groups.The RE group being assigned with same index in each PRB is combined to build DVRB.
Fig. 9 represents in accordance with another embodiment of the present invention about the view of the example of the schedule information construction method of the scheduling of use DVRB.
As described in Figure 8, the sum according to the PRB of the DVRB being used as DVRB transmission/reception methods in subframe is being used to determine the method for PRB and the DVRB structure of DVRB transmission/reception methods in this case, can by the schedule information of base-station transmission by description.In this case, in the present embodiment, when base station with any subframe to/from user device transmissions/reception data, suggested a kind of for the method to the following information of notification of user equipment.That is, Fig. 9 represents the schedule information for subscriber equipment.
Base station to notification of user equipment in any subframe for being used as the sum of the PRB of the DVRB 80 of DVRB transmission/reception methods.Herein, the sum of DVRB can be used replace the sum of the PRB for DVRB.As mentioned above, if be aware of the sum of the PRB of the DVRB 80 for being used as DVRB transmission/reception methods, subscriber equipment can know the structure for the PRB of DVRB transmission and the DVRB of use PRB.
For being transmitted to/from the DVRB information of user device transmissions/reception data.If such for the DVRB transmitting/receiving data by having continued labelling rule is applied to subscriber equipment, base station notice carrys out the subscriber equipment of transmitting/receiving data by the DVRB of the quantity 82 starting DVRB index 81 and DVRB, thus to notification of user equipment by which DVRB transmitting/receiving data.Herein, the quantity of DVRB 82 can be replaced by the quantity of RE.
For example, suppose to carry out operation dispatching according to the DVRB construction method as shown on the downside of Fig. 8.That is, if be 4 for the quantity of the PRB of the DVRB of the method that is used as DVRB transmission/reception, PRB for DVRB transmission is the first, the 3rd, the 5th and the 7th PRB, and the RE in each PRB is divided into four groups, and sequentially allocation index 1,2,3 and 4 gives this four groups.Suppose that the RE group being assigned with same index in each PRB is combined to build DVRB.
In this case, for DVRB transmission/reception methods PRBs 80 add up to 4.Receiver receives the PRB sum 4 for DVRB 80, and this sum is used to DVRB transmission/reception methods, and receiver knows that DVRB is fabricated as shown in the downside of Fig. 8.When directly to indicate this mode of DVRB to build DVRB information, the information corresponding to the DVRB index information of 4 is transmitted.When the quantity 82 starting DVRB index 81 and DVRB is transmitted as the DVRB passed through to/from user device transmissions/reception data, the information corresponding to DVRB and the DVRB index of 4 is transmitted.Receiver receives information and knows and uses the DVRB with DVRB index 4 to carry out transmitting/receiving data.
By above-mentioned method, base station dispatcher is freely selected PRB in each subframe and is built DVRB, thus can freely multiplexing FDS transmission method and FSS transmission method.
In more detail, in the above-described embodiments, by controlling to the notification of user equipment by DVRB transmitting/receiving data for being used as the sum of the PRB of the DVRB 80 of DVRB transmission/reception methods to the channel of subscriber equipment for transmitting scheduling information.When the sum of PRB transmitting the DVRB 80 for being used as DVRB transmission/reception methods is to subscriber equipment by DVRB transmitting/receiving data, do not need to increase the bit for transmitting this information.
Before decoding and reading are used for the downlink control channel of transmitting scheduling information, subscriber equipment cannot be learnt and whether transmit group scheduling information or bitmap schedule information by LVRB, or whether transmit DVRB schedule information.Thus by the bit of application same-code to equal number, and no matter the dispatching method downlink control channel built for transmitting these information is effective.That is, preferably, the information indicating which kind of dispatching method to be employed is included in the information bit of instruction schedule information, and should the information indicated by dispatching method be included in remainder.
Now, because by the Partial Bitmap schedule information of LVRB or group scheduling information indicating bit drawing method by which LVRB transmitting/receiving data, if the LVRB quantity in subframe is comparatively large, just need a large amount of bit.Such as, when 48 LVRB are divided into 3 LVRB groups to build group scheduling information, 16 bits are needed to indicate LVRB group for transmitting/receiving data.That is, transmitting scheduling information should be carried out by least 16 bits.
In DVRB dispatching method as suggested in the present invention, because be only notified of for a DVRB index of performing data transmission/reception and the quantity of DVRB passed through to/from user device transmissions/reception data, maximum only needs 12 bits.Thus, because at least need 16 bits by the transmitting scheduling information of LVRB, although so add the sum of the PRB for DVRB transmission/reception methods, the down-chain resource be used as the control channel of transmitting scheduling information does not increase, or has been lowered.
Figure 10 represents according to an embodiment of the invention for building the view of the example of the method for the different DVRB about community.
If the DVRB construction method defined coequally by each community is applied to cellular system, the RE in the specific DVRB of transfer of data distributing to subscriber equipment with distribute to neighbor cell another subscriber equipment transfer of data specific DVRB in the probability that mates completely of RE very high.In this case, particularly, when two subscriber equipmenies of the neighbor cell with the identical DVRB distributing to transfer of data are close to each other, larger interference may be there is compared to other subscriber equipmenies.Thus, in order to avoid the situation that the RE in the specific DVRB of a community mates completely with the RE in the specific DVRB of another community, need the RE of randomization in specific DVRB.
Thus, in the present embodiment, in order to the RE of the DVRB in different districts is distributed in randomization, suggested a kind of relevant position for defining subcarrier distinctively, the method for the position of OFDM symbol or the position for the RE in the PRB of DVRB in each cell.
Figure 10 represents and to arrange in units of RE for mapping the example of RE to the position of the DVRB of any use different interleaving method in Liang Ge community.That is, index 1 to 20 is assigned to 20 RE in each PRB of the DVRB be included in for being used as DVRB transmission.Intertexture or skew (Shift) is performed for 20 RE in each PRB of DVRB to being included in.Position for the RE of RE index can change according to community.
In other words, although the RE with same index is distributed to DVRB according to community, the position of physical sub-carrier or OFDM symbol can be different from each other.If input community ID, now used intertexture or skew rule can perform randomization more effectively.In intertexture or skew rule, together with the ID of community, or random sequence can be inputted independent of community ID.
Can be unit or perform interlace operation or offset operation in units of RE group by RE.Such as, in units of the RE belonging to same sub-carrier or in units of the RE belonging to identical OFDM symbol, interlace operation or offset operation is performed.In addition, can in all PRB distributing to DVRB transmission, or in some PRB in subframe and perform interlace operation or offset operation in each PRB.
Figure 11 represents to be used to according to an embodiment of the invention transmit the view about the example of the PRB system of selection of the different DVRB of community.
In the present embodiment, in order to the interference of randomization between the neighbor cell of the RE for distributing to DVRB, and the interference preventing between the PRB distributing to DVRB that occurs between neighbor cell, provide the method for the selection of a kind of PRB for changing the DVRB for distributing to DVRB transmission in subframe.
Figure 11 represents the example of the method for the selection of the PRB for changing the DVRB for distributing to DVRB transmission in subframe.Such as, use the first, the 4th and the 7th PRB in community 1 to build DVRB, but be different from community 1, use the DVRB that the second, the 5th and the 8th PRB in community 2 builds.
In order to change the selection of the PRB of the DVRB for distributing to the DVRB transmission in each community, different skews or interlace operation can be used for PRB index.In skew used at this moment or interlacing rule, such as, similar with the randomization of RE position, community ID or predetermined random sequence can be exported.
Among the method for transmitting data, in FSS method, because use the continuous subcarrier in frequency domain to transmit data, LVRB is preferably used to transmit data.Among the method for transmitting data, in FDS method, DVRB is preferably used to transmit data to use the discontinuous subcarrier transmission data in frequency domain.
Figure 12 represents according to an embodiment of the invention for the transmission of use DVRB multiplexing in subframe and the transmission of use LVRB, and transmits the method for multiplexed signals.
As mentioned above, preferably, the transmission of multiplexing use DVRB and the transmission of use LVRB in subframe.Particularly, for being determined position and a quantity of the PRB (being called as DPRB below) being used to DVRB transmission method by the quantity of the DVRB with the similar actual transmissions of said method, and to be arranged in the subscriber equipment of community directly/indirectly notify that the method for described information may be used on DVRB transmission.If application uses the scheduling of LVRB group before LVRB scheduling, the part building the PRB of any LVRB group in subframe can be assigned to DVRB transmission.
For example, see Figure 12, in subframe, there are 48 PRB, and three PRB are merged to build a LVRB group.Then there are 16 LVRB groups.Now, if the PRB represented by " * " is assigned to DVRB, the second, the 4th, the tenth to transmit with DVRB when LVRB group is transmitted with the 15 LVRB group and conflicts mutually.
Thus, in the present embodiment, when a part for any LVRB group is used as the DVRB transmission of any subscriber equipment, suggested a kind of method by LVRB group, the data of transmission being transferred to another subscriber equipment for only using DVRB to transmit untapped LVRB.That is, in the example in figure 12, if LVRB group scheduling transfers data to any subscriber equipment by the 2nd LVRB group, the LVRB performed about subscriber equipment by two except the PRB transmitted for DVRB residues PRB (PRB namely represented by " # ") among three PRB in the 2nd LVRB group transmits.
When receiving instruction and receiving the schedule information of data by specific LVRB group, when there is the PRB being used for DVRB transmission among the PRB building LVRB group, subscriber equipment is determined not receive data by this PRB, and receives the data by the LVRB transmission about residue PRB.
Clearly those skilled in the art can carry out various amendment and change to the present invention, and does not depart from spirit of the present invention or category.Therefore, if amendment of the present invention and change drop within claims and equivalency range thereof, the invention is intended to cover these modifications and variations.
That is, the present invention is not limited to embodiment described herein, and the maximum magnitude of the principle that can be interpreted as having according to disclosed herein and feature.
Industrial applicibility
The present invention is applicable to mobile communication system, cell mobile communication systems and cellular re-use carrier system.

Claims (8)

1., for receiving a method for data in mobile communication system, described method comprises:
Receive the control channel signal comprising the first information and the second information, one during the described first information indicates N number of Resource Block group RBG to gather, wherein N >=2, and described second information comprises the bitmap distributed for Resource Block RB; And
The one or more RB distributed by described control channel signal are used to receive data,
Wherein, whether bit value instruction corresponding RB in the RBG set of instruction of described bitmap is assigned with,
Wherein, N number of each of RBG set comprises multiple discrete RBG, and each RBG comprises one or more continuous print RB, and each RB comprises continuous print subcarrier.
2. method according to claim 1, wherein N is identical with the size of the RBG in units of RB.
3. method according to claim 1, the quantity of the RB wherein in RBG set is identical with the sum of described RBG.
4., for receiving a subscriber equipment for data in mobile communication system, described subscriber equipment comprises:
For receiving the device of the control channel signal comprising the first information and the second information, one during the described first information indicates N number of Resource Block group RBG to gather, wherein N >=2, and described second information comprises the bitmap distributed for Resource Block RB; And
For the device using the one or more RB distributed by described control channel signal to receive data,
Wherein, whether bit value instruction corresponding RB in the RBG set of instruction of described bitmap is assigned with,
Wherein, N number of each of RBG set comprises multiple discrete RBG, and each RBG comprises one or more continuous print RB, and each RB comprises continuous print subcarrier.
5., for sending a method for data in mobile communication system, described method comprises:
Produce the first information and the second information, one during the described first information indicates N number of Resource Block group RBG to gather, wherein N >=2, and described second information comprises the bitmap distributed for Resource Block RB; And
The control channel signal comprising the first information and the second information is sent to subscriber equipment; And
Use the one or more RB distributed by described control channel signal that data are sent to subscriber equipment,
Wherein, whether bit value instruction corresponding RB in the RBG set of instruction of described bitmap is assigned with,
Wherein, N number of each of RBG set comprises multiple discrete RBG, and each RBG comprises one or more continuous print RB, and each RB comprises continuous print subcarrier.
6. method according to claim 5, wherein N is identical with the size of the RBG in units of RB.
7. method according to claim 5, wherein, in RBG set, the quantity of RB is identical with the sum of RBG.
8., for sending a base station for data in mobile communication system, described base station comprises:
For generation of the device of the first information and the second information, one during the described first information indicates N number of Resource Block group RBG to gather, wherein N >=2, and described second information comprises the bitmap distributed for Resource Block RB; And
For the control channel signal comprising the first information and the second information being sent to the device of subscriber equipment; And
For using the device by one or more RB of described control channel signal distribution, data being sent to subscriber equipment,
Wherein, whether bit value instruction corresponding RB in the RBG set of instruction of described bitmap is assigned with,
Wherein, N number of each of RBG set comprises multiple discrete RBG, and each RBG comprises one or more continuous print RB, and each RB comprises continuous print subcarrier.
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